For outdoor play, the space over the court should be clear overhanging limbs or other obstructions and should be not less than 18′ at the fence, 21′ over the baseline, and 35′ over the net, although 38′ is recommended. For indoor play, the space overhead should be not less than 18′ at the eaves, 21′ over the baseline, and 35′ at the net, although 38′ is recommended. (Note: The above distances for indoor courts reflect the measurement from the court surface to the interior finished ceiling of the building).